| //===-- ClangStmtVisitor.cpp ------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "lldb/Expression/ClangStmtVisitor.h" |
| |
| // C Includes |
| // C++ Includes |
| // Other libraries and framework includes |
| #include "clang/AST/RecordLayout.h" |
| |
| #include "lldb/Core/dwarf.h" |
| #include "lldb/Core/Scalar.h" |
| #include "lldb/Core/StreamString.h" |
| #include "lldb/Expression/ClangExpressionDeclMap.h" |
| #include "lldb/Expression/ClangExpressionVariable.h" |
| |
| //#define ENABLE_DEBUG_PRINTF // COMMENT THIS LINE OUT PRIOR TO CHECKIN |
| #ifdef ENABLE_DEBUG_PRINTF |
| #include <stdio.h> |
| #define DEBUG_PRINTF(fmt, ...) printf(fmt, ## __VA_ARGS__) |
| #else |
| #define DEBUG_PRINTF(fmt, ...) |
| #endif |
| |
| // Project includes |
| |
| static lldb_private::Scalar::Type |
| GetScalarTypeForClangType (clang::ASTContext &ast_context, clang::QualType clang_type, uint32_t &count) |
| { |
| count = 1; |
| |
| switch (clang_type->getTypeClass()) |
| { |
| case clang::Type::FunctionNoProto: |
| case clang::Type::FunctionProto: |
| break; |
| |
| case clang::Type::IncompleteArray: |
| case clang::Type::VariableArray: |
| break; |
| |
| case clang::Type::ConstantArray: |
| break; |
| |
| case clang::Type::ExtVector: |
| case clang::Type::Vector: |
| // TODO: Set this to more than one??? |
| break; |
| |
| case clang::Type::Builtin: |
| switch (cast<clang::BuiltinType>(clang_type)->getKind()) |
| { |
| default: assert(0 && "Unknown builtin type!"); |
| case clang::BuiltinType::Void: |
| break; |
| |
| case clang::BuiltinType::Bool: |
| case clang::BuiltinType::Char_S: |
| case clang::BuiltinType::SChar: |
| case clang::BuiltinType::WChar: |
| case clang::BuiltinType::Char16: |
| case clang::BuiltinType::Char32: |
| case clang::BuiltinType::Short: |
| case clang::BuiltinType::Int: |
| case clang::BuiltinType::Long: |
| case clang::BuiltinType::LongLong: |
| case clang::BuiltinType::Int128: |
| return lldb_private::Scalar::GetValueTypeForSignedIntegerWithByteSize ((ast_context.getTypeSize(clang_type)/CHAR_BIT)/count); |
| |
| case clang::BuiltinType::Char_U: |
| case clang::BuiltinType::UChar: |
| case clang::BuiltinType::UShort: |
| case clang::BuiltinType::UInt: |
| case clang::BuiltinType::ULong: |
| case clang::BuiltinType::ULongLong: |
| case clang::BuiltinType::UInt128: |
| case clang::BuiltinType::NullPtr: |
| return lldb_private::Scalar::GetValueTypeForUnsignedIntegerWithByteSize ((ast_context.getTypeSize(clang_type)/CHAR_BIT)/count); |
| |
| case clang::BuiltinType::Float: |
| case clang::BuiltinType::Double: |
| case clang::BuiltinType::LongDouble: |
| return lldb_private::Scalar::GetValueTypeForFloatWithByteSize ((ast_context.getTypeSize(clang_type)/CHAR_BIT)/count); |
| } |
| break; |
| // All pointer types are represented as unsigned integer encodings. |
| // We may nee to add a eEncodingPointer if we ever need to know the |
| // difference |
| case clang::Type::ObjCObjectPointer: |
| case clang::Type::BlockPointer: |
| case clang::Type::Pointer: |
| case clang::Type::LValueReference: |
| case clang::Type::RValueReference: |
| case clang::Type::MemberPointer: |
| return lldb_private::Scalar::GetValueTypeForUnsignedIntegerWithByteSize ((ast_context.getTypeSize(clang_type)/CHAR_BIT)/count); |
| |
| // Complex numbers are made up of floats |
| case clang::Type::Complex: |
| count = 2; |
| return lldb_private::Scalar::GetValueTypeForFloatWithByteSize ((ast_context.getTypeSize(clang_type)/CHAR_BIT) / count); |
| |
| case clang::Type::ObjCInterface: break; |
| case clang::Type::Record: break; |
| case clang::Type::Enum: |
| return lldb_private::Scalar::GetValueTypeForSignedIntegerWithByteSize ((ast_context.getTypeSize(clang_type)/CHAR_BIT)/count); |
| |
| case clang::Type::Typedef: |
| return GetScalarTypeForClangType(ast_context, cast<clang::TypedefType>(clang_type)->LookThroughTypedefs(), count); |
| break; |
| |
| case clang::Type::TypeOfExpr: |
| case clang::Type::TypeOf: |
| case clang::Type::Decltype: |
| //case clang::Type::QualifiedName: |
| case clang::Type::TemplateSpecialization: break; |
| } |
| count = 0; |
| return lldb_private::Scalar::e_void; |
| } |
| |
| //---------------------------------------------------------------------- |
| // ClangStmtVisitor constructor |
| //---------------------------------------------------------------------- |
| lldb_private::ClangStmtVisitor::ClangStmtVisitor |
| ( |
| clang::ASTContext &ast_context, |
| lldb_private::ClangExpressionVariableList &variable_list, |
| lldb_private::ClangExpressionDeclMap *decl_map, |
| lldb_private::StreamString &strm |
| ) : |
| m_ast_context (ast_context), |
| m_variable_list (variable_list), |
| m_decl_map (decl_map), |
| m_stream (strm) |
| { |
| } |
| |
| //---------------------------------------------------------------------- |
| // Destructor |
| //---------------------------------------------------------------------- |
| lldb_private::ClangStmtVisitor::~ClangStmtVisitor() |
| { |
| } |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitStmt (clang::Stmt *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| |
| clang::Stmt::child_iterator pos; |
| clang::Stmt::child_iterator begin = Node->child_begin(); |
| clang::Stmt::child_iterator end = Node->child_end(); |
| bool clear_before_next_stmt = false; |
| for (pos = begin; pos != end; ++pos) |
| { |
| #ifdef ENABLE_DEBUG_PRINTF |
| pos->dump(); |
| #endif |
| clang::Stmt *child_stmt = *pos; |
| uint32_t pre_visit_stream_offset = m_stream.GetSize(); |
| bool not_null_stmt = dyn_cast<clang::NullStmt>(child_stmt) == NULL; |
| if (clear_before_next_stmt && not_null_stmt) |
| m_stream.PutHex8(DW_OP_APPLE_clear); |
| Visit (child_stmt); |
| if (not_null_stmt) |
| clear_before_next_stmt = pre_visit_stream_offset != m_stream.GetSize(); |
| } |
| } |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitDeclStmt (clang::DeclStmt *decl_stmt) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| clang::DeclGroupRef decl_group_ref = decl_stmt->getDeclGroup(); |
| clang::DeclGroupRef::iterator pos, end = decl_group_ref.end(); |
| for (pos = decl_group_ref.begin(); pos != end; ++pos) |
| { |
| clang::Decl *decl = *pos; |
| if (decl) |
| { |
| clang::Decl::Kind decl_kind = decl->getKind(); |
| |
| switch (decl_kind) |
| { |
| case clang::Decl::Namespace: |
| case clang::Decl::Enum: |
| case clang::Decl::Record: |
| case clang::Decl::CXXRecord: |
| case clang::Decl::ObjCMethod: |
| case clang::Decl::ObjCInterface: |
| case clang::Decl::ObjCCategory: |
| case clang::Decl::ObjCProtocol: |
| case clang::Decl::ObjCImplementation: |
| case clang::Decl::ObjCCategoryImpl: |
| case clang::Decl::LinkageSpec: |
| case clang::Decl::Block: |
| case clang::Decl::Function: |
| case clang::Decl::CXXMethod: |
| case clang::Decl::CXXConstructor: |
| case clang::Decl::CXXDestructor: |
| case clang::Decl::CXXConversion: |
| case clang::Decl::Field: |
| case clang::Decl::Typedef: |
| case clang::Decl::EnumConstant: |
| case clang::Decl::ImplicitParam: |
| case clang::Decl::ParmVar: |
| case clang::Decl::ObjCProperty: |
| break; |
| |
| case clang::Decl::Var: |
| { |
| const clang::VarDecl *var_decl = cast<clang::VarDecl>(decl)->getCanonicalDecl(); |
| uint32_t expr_local_var_idx = UINT32_MAX; |
| if (m_variable_list.GetVariableForVarDecl (m_ast_context, var_decl, expr_local_var_idx, true)) |
| { |
| const clang::Expr* var_decl_expr = var_decl->getAnyInitializer(); |
| // If there is an inialization expression, then assign the |
| // variable. |
| if (var_decl_expr) |
| { |
| m_stream.PutHex8(DW_OP_APPLE_expr_local); |
| m_stream.PutULEB128(expr_local_var_idx); |
| Visit ((clang::Stmt *)var_decl_expr); |
| m_stream.PutHex8(DW_OP_APPLE_assign); |
| } |
| } |
| } |
| break; |
| |
| default: |
| assert(!"decl unhandled"); |
| break; |
| } |
| } |
| } |
| } |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitLabelStmt (clang::LabelStmt *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitGotoStmt (clang::GotoStmt *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| // Exprs |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitExpr (clang::Expr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitDeclRefExpr (clang::DeclRefExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| clang::NamedDecl *decl = Node->getDecl(); |
| clang::QualType clang_type = Node->getType(); |
| |
| #ifdef ENABLE_DEBUG_PRINTF |
| //decl->dump(); |
| //clang_type.dump("lldb_private::ClangStmtVisitor::VisitDeclRefExpr() -> clang_type.dump() = "); |
| #endif |
| uint32_t expr_local_var_idx = UINT32_MAX; |
| if (m_variable_list.GetVariableForVarDecl (m_ast_context, cast<clang::VarDecl>(decl)->getCanonicalDecl(), expr_local_var_idx, false) && |
| expr_local_var_idx != UINT32_MAX) |
| { |
| m_stream.PutHex8(DW_OP_APPLE_expr_local); |
| m_stream.PutULEB128(expr_local_var_idx); |
| } |
| else if (m_decl_map && |
| m_decl_map->GetIndexForDecl(expr_local_var_idx, decl->getCanonicalDecl())) |
| { |
| m_stream.PutHex8(DW_OP_APPLE_extern); |
| m_stream.PutULEB128(expr_local_var_idx); |
| } |
| else |
| { |
| m_stream.PutHex8 (DW_OP_APPLE_error); |
| } |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitPredefinedExpr (clang::PredefinedExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitCharacterLiteral (clang::CharacterLiteral *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| clang::QualType clang_type = Node->getType(); |
| uint64_t clang_type_size = m_ast_context.getTypeSize (clang_type); |
| if (clang_type_size <= 64) |
| { |
| // Encode the integer into our DWARF expression |
| if (clang_type->isSignedIntegerType()) |
| EncodeSInt64(Node->getValue(), clang_type_size); |
| else |
| EncodeUInt64(Node->getValue(), clang_type_size); |
| } |
| else |
| { |
| // TODO: eventually support integer math over 64 bits, probably using |
| // APInt as the class. |
| m_stream.PutHex8(DW_OP_APPLE_error); |
| } |
| } |
| |
| bool |
| lldb_private::ClangStmtVisitor::EncodeUInt64 (uint64_t uval, uint32_t bit_size) |
| { |
| // If "bit_size" is zero, then encode "uval" in the most efficient way |
| if (bit_size <= 8 || (bit_size == 0 && uval <= UINT8_MAX)) |
| { |
| m_stream.PutHex8 (DW_OP_const1u); |
| m_stream.PutHex8 (uval); |
| } |
| else if (bit_size <= 16 || (bit_size == 0 && uval <= UINT16_MAX)) |
| { |
| m_stream.PutHex8 (DW_OP_const2u); |
| m_stream.PutHex16 (uval); |
| } |
| else if (bit_size <= 32 || (bit_size == 0 && uval <= UINT32_MAX)) |
| { |
| m_stream.PutHex8 (DW_OP_const4u); |
| m_stream.PutHex32 (uval); |
| } |
| else if (bit_size <= 64 || (bit_size == 0)) |
| { |
| m_stream.PutHex8 (DW_OP_const8u); |
| m_stream.PutHex64 (uval); |
| } |
| else |
| { |
| m_stream.PutHex8 (DW_OP_APPLE_error); |
| return false; |
| } |
| return true; |
| } |
| |
| bool |
| lldb_private::ClangStmtVisitor::EncodeSInt64 (int64_t sval, uint32_t bit_size) |
| { |
| if (bit_size <= 8 || (bit_size == 0 && INT8_MIN <= sval && sval <= INT8_MAX)) |
| { |
| m_stream.PutHex8 (DW_OP_const1s); |
| m_stream.PutHex8 (sval); |
| } |
| else if (bit_size <= 16 || (bit_size == 0 && INT16_MIN <= sval && sval <= INT16_MAX)) |
| { |
| m_stream.PutHex8 (DW_OP_const2s); |
| m_stream.PutHex16 (sval); |
| } |
| else if (bit_size <= 32 || (bit_size == 0 && INT32_MIN <= sval && sval <= INT32_MAX)) |
| { |
| m_stream.PutHex8 (DW_OP_const4s); |
| m_stream.PutHex32 (sval); |
| } |
| else if (bit_size <= 64 || (bit_size == 0)) |
| { |
| m_stream.PutHex8 (DW_OP_const8s); |
| m_stream.PutHex64 (sval); |
| } |
| else |
| { |
| m_stream.PutHex8 (DW_OP_APPLE_error); |
| return false; |
| } |
| return true; |
| } |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitIntegerLiteral (clang::IntegerLiteral *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| const llvm::APInt &ap_int = Node->getValue(); |
| if (ap_int.getBitWidth() <= 64) |
| { |
| clang::QualType clang_type = Node->getType(); |
| uint64_t clang_type_size = m_ast_context.getTypeSize (clang_type); |
| // Encode the integer into our DWARF expression |
| if (clang_type->isSignedIntegerType()) |
| EncodeSInt64(ap_int.getLimitedValue(), clang_type_size); |
| else |
| EncodeUInt64(ap_int.getLimitedValue(), clang_type_size); |
| } |
| else |
| { |
| // TODO: eventually support integer math over 64 bits, probably using |
| // APInt as the class. |
| m_stream.PutHex8(DW_OP_APPLE_error); |
| } |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitFloatingLiteral (clang::FloatingLiteral *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| const llvm::APFloat &ap_float = Node->getValue(); |
| // Put the length of the float in bytes into a single byte |
| llvm::APInt ap_int(ap_float.bitcastToAPInt()); |
| const unsigned byte_size = ap_int.getBitWidth() / CHAR_BIT; |
| if (byte_size == sizeof(float)) |
| { |
| if (sizeof(float) == 4) |
| { |
| m_stream.PutHex8(DW_OP_APPLE_constf); |
| m_stream.PutHex8 (byte_size); |
| m_stream.PutHex32 (ap_int.getLimitedValue()); |
| return; |
| } |
| else if (sizeof(float) == 8) |
| { |
| m_stream.PutHex8(DW_OP_APPLE_constf); |
| m_stream.PutHex8 (byte_size); |
| m_stream.PutHex64 (ap_int.getLimitedValue()); |
| return; |
| } |
| } |
| else if (byte_size == sizeof(double)) |
| { |
| if (sizeof(double) == 4) |
| { |
| m_stream.PutHex8(DW_OP_APPLE_constf); |
| m_stream.PutHex8 (byte_size); |
| m_stream.PutHex32 (ap_int.getLimitedValue()); |
| return; |
| } |
| else if (sizeof(double) == 8) |
| { |
| m_stream.PutHex8(DW_OP_APPLE_constf); |
| m_stream.PutHex8 (byte_size); |
| m_stream.PutHex64 (ap_int.getLimitedValue()); |
| return; |
| } |
| } |
| else if (byte_size == sizeof(long double)) |
| { |
| if (sizeof(long double) == 8) |
| { |
| m_stream.PutHex8(DW_OP_APPLE_constf); |
| m_stream.PutHex8 (byte_size); |
| m_stream.PutHex64 (ap_int.getLimitedValue()); |
| return; |
| } |
| } |
| // TODO: eventually support float constants of all sizes using |
| // APFloat as the class. |
| m_stream.PutHex8(DW_OP_APPLE_error); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitStringLiteral (clang::StringLiteral *Str) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| |
| size_t byte_length = Str->getByteLength(); |
| bool is_wide = Str->isWide(); |
| |
| size_t new_length = byte_length + (is_wide ? 1 : 2); |
| |
| uint8_t null_terminated_string[new_length]; |
| |
| memcpy(&null_terminated_string[0], Str->getStrData(), byte_length); |
| |
| if(is_wide) |
| { |
| null_terminated_string[byte_length] = '\0'; |
| null_terminated_string[byte_length + 1] = '\0'; |
| } |
| else |
| { |
| null_terminated_string[byte_length] = '\0'; |
| } |
| |
| Value *val = new Value(null_terminated_string, new_length); |
| val->SetContext(Value::eContextTypeOpaqueClangQualType, Str->getType().getAsOpaquePtr()); |
| |
| uint32_t val_idx = m_variable_list.AppendValue(val); |
| |
| m_stream.PutHex8(DW_OP_APPLE_expr_local); |
| m_stream.PutULEB128(val_idx); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitUnaryOperator (clang::UnaryOperator *unary_op) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| |
| Visit(unary_op->getSubExpr()); |
| |
| switch (unary_op->getOpcode()) |
| { |
| case clang::UnaryOperator::PostInc: |
| // Duplciate the top of stack value (which must be something that can |
| // be assignable/incremented) and push its current value |
| m_stream.PutHex8 (DW_OP_dup); // x, x |
| m_stream.PutHex8 (DW_OP_APPLE_value_of); // x, val(x) |
| m_stream.PutHex8 (DW_OP_swap); // val(x), x |
| m_stream.PutHex8 (DW_OP_dup); // val(x), x, x |
| m_stream.PutHex8 (DW_OP_lit1); // val(x), x, x, 1 |
| m_stream.PutHex8 (DW_OP_plus); // val(x), x, val(x)+1 |
| m_stream.PutHex8 (DW_OP_APPLE_assign); // val(x), x |
| m_stream.PutHex8 (DW_OP_drop); // val(x) |
| break; |
| |
| case clang::UnaryOperator::PostDec: |
| // Duplciate the top of stack value (which must be something that can |
| // be assignable/incremented) and push its current value |
| m_stream.PutHex8 (DW_OP_dup); // x, x |
| m_stream.PutHex8 (DW_OP_APPLE_value_of); // x, val(x) |
| m_stream.PutHex8 (DW_OP_swap); // val(x), x |
| m_stream.PutHex8 (DW_OP_dup); // val(x), x, x |
| m_stream.PutHex8 (DW_OP_lit1); // val(x), x, x, 1 |
| m_stream.PutHex8 (DW_OP_minus); // val(x), x, val(x)-1 |
| m_stream.PutHex8 (DW_OP_APPLE_assign); // val(x), x |
| m_stream.PutHex8 (DW_OP_drop); // val(x) |
| break; |
| |
| case clang::UnaryOperator::PreInc: |
| m_stream.PutHex8 (DW_OP_dup); // x, x |
| m_stream.PutHex8 (DW_OP_APPLE_value_of); // x, val(x) |
| m_stream.PutHex8 (DW_OP_lit1); // x, val(x), 1 |
| m_stream.PutHex8 (DW_OP_plus); // x, val(x)+1 |
| m_stream.PutHex8 (DW_OP_APPLE_assign); // x with new value |
| break; |
| |
| case clang::UnaryOperator::PreDec: |
| m_stream.PutHex8 (DW_OP_dup); // x, x |
| m_stream.PutHex8 (DW_OP_APPLE_value_of); // x, val(x) |
| m_stream.PutHex8 (DW_OP_lit1); // x, val(x), 1 |
| m_stream.PutHex8 (DW_OP_minus); // x, val(x)-1 |
| m_stream.PutHex8 (DW_OP_APPLE_assign); // x with new value |
| break; |
| |
| case clang::UnaryOperator::AddrOf: |
| m_stream.PutHex8 (DW_OP_APPLE_address_of); |
| break; |
| |
| case clang::UnaryOperator::Deref: |
| m_stream.PutHex8 (DW_OP_APPLE_deref_type); |
| break; |
| |
| case clang::UnaryOperator::Plus: |
| m_stream.PutHex8 (DW_OP_abs); |
| break; |
| |
| case clang::UnaryOperator::Minus: |
| m_stream.PutHex8 (DW_OP_neg); |
| break; |
| |
| case clang::UnaryOperator::Not: |
| m_stream.PutHex8 (DW_OP_not); |
| break; |
| |
| case clang::UnaryOperator::LNot: |
| m_stream.PutHex8 (DW_OP_lit0); |
| m_stream.PutHex8 (DW_OP_eq); |
| break; |
| |
| case clang::UnaryOperator::Real: |
| m_stream.PutHex8(DW_OP_APPLE_error); |
| break; |
| |
| case clang::UnaryOperator::Imag: |
| m_stream.PutHex8(DW_OP_APPLE_error); |
| break; |
| |
| case clang::UnaryOperator::Extension: |
| m_stream.PutHex8(DW_OP_APPLE_error); |
| break; |
| |
| case clang::UnaryOperator::OffsetOf: |
| break; |
| |
| default: |
| assert(!"Unknown unary operator!"); |
| break; |
| } |
| } |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitCastExpr (clang::CastExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| // CastExpr::CastKind cast_kind = Node->getCastKind(); |
| // switch (cast_kind) |
| // { |
| // case CastExpr::CK_Unknown: |
| // case CastExpr::CK_BitCast: // Used for reinterpret_cast. |
| // case CastExpr::CK_NoOp: // Used for const_cast. |
| // case CastExpr::CK_BaseToDerived: // Base to derived class casts. |
| // case CastExpr::CK_DerivedToBase: // Derived to base class casts. |
| // case CastExpr::CK_Dynamic: // Dynamic cast. |
| // case CastExpr::CK_ToUnion: // Cast to union (GCC extension). |
| // case CastExpr::CK_ArrayToPointerDecay: // Array to pointer decay. |
| // case CastExpr::CK_FunctionToPointerDecay: // Function to pointer decay. |
| // case CastExpr::CK_NullToMemberPointer: // Null pointer to member pointer. |
| // case CastExpr::CK_BaseToDerivedMemberPointer: // Member pointer in base class to member pointer in derived class. |
| // case CastExpr::CK_DerivedToBaseMemberPointer: // Member pointer in derived class to member pointer in base class. |
| // case CastExpr::CK_UserDefinedConversion: // Conversion using a user defined type conversion function. |
| // case CastExpr::CK_ConstructorConversion: // Conversion by constructor |
| // case CastExpr::CK_IntegralToPointer: // Integral to pointer |
| // case CastExpr::CK_PointerToIntegral: // Pointer to integral |
| // case CastExpr::CK_ToVoid: // Cast to void |
| // case CastExpr::CK_VectorSplat: // Casting from an integer/floating type to an extended |
| // // vector type with the same element type as the src type. Splats the |
| // // src expression into the destination expression. |
| // case CastExpr::CK_IntegralCast: // Casting between integral types of different size. |
| // case CastExpr::CK_IntegralToFloating: // Integral to floating point. |
| // case CastExpr::CK_FloatingToIntegral: // Floating point to integral. |
| // case CastExpr::CK_FloatingCast: // Casting between floating types of different size. |
| // m_stream.PutHex8(DW_OP_APPLE_error); |
| // break; |
| // } |
| uint32_t cast_type_count = 0; |
| lldb_private::Scalar::Type cast_type_encoding = GetScalarTypeForClangType (m_ast_context, Node->getType(), cast_type_count); |
| |
| |
| Visit (Node->getSubExpr()); |
| |
| // Simple scalar cast |
| if (cast_type_encoding != lldb_private::Scalar::e_void && cast_type_count == 1) |
| { |
| // Only cast if our scalar types mismatch |
| uint32_t castee_type_count = 0; |
| lldb_private::Scalar::Type castee_type_encoding = GetScalarTypeForClangType (m_ast_context, Node->getSubExpr()->getType(), castee_type_count); |
| if (cast_type_encoding != castee_type_encoding && |
| castee_type_encoding != lldb_private::Scalar::e_void) |
| { |
| m_stream.PutHex8(DW_OP_APPLE_scalar_cast); |
| m_stream.PutHex8(cast_type_encoding); |
| } |
| } |
| else |
| { |
| // Handle more complex casts with clang types soon! |
| m_stream.PutHex8(DW_OP_APPLE_error); |
| } |
| } |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitArraySubscriptExpr (clang::ArraySubscriptExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| Visit (Node->getBase()); |
| Visit (Node->getIdx()); |
| m_stream.PutHex8(DW_OP_APPLE_array_ref); |
| } |
| |
| // |
| //CLANG_STMT_RESULT |
| //lldb_private::ClangStmtVisitor::VisitImplicitCastExpr (clang::ImplicitCastExpr *Node) |
| //{ |
| // DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| // m_stream.PutHex8(DW_OP_APPLE_scalar_cast); |
| // Visit (Node->getSubExpr()); |
| //} |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitSizeOfAlignOfExpr (clang::SizeOfAlignOfExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitMemberExpr (clang::MemberExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| clang::Expr *parent = Node->getBase(); |
| Visit (parent); |
| clang::QualType parent_clang_type = parent->getType(); |
| clang::NamedDecl *member_named_decl = cast<clang::NamedDecl>(Node->getMemberDecl()->getCanonicalDecl()); |
| |
| // DeclarationName member_name = member->getDeclName(); |
| |
| clang::Type::TypeClass parent_type_class = parent_clang_type->getTypeClass(); |
| if (parent_type_class == clang::Type::Pointer) |
| { |
| clang::PointerType *pointer_type = cast<clang::PointerType>(parent_clang_type.getTypePtr()); |
| parent_clang_type = pointer_type->getPointeeType(); |
| parent_type_class = parent_clang_type->getTypeClass(); |
| } |
| |
| switch (parent_type_class) |
| { |
| case clang::Type::Record: |
| { |
| const clang::RecordType *record_type = cast<clang::RecordType>(parent_clang_type.getTypePtr()); |
| const clang::RecordDecl *record_decl = record_type->getDecl(); |
| assert(record_decl); |
| const clang::ASTRecordLayout &record_layout = m_ast_context.getASTRecordLayout(record_decl); |
| uint32_t field_idx = 0; |
| clang::RecordDecl::field_iterator field, field_end; |
| for (field = record_decl->field_begin(), field_end = record_decl->field_end(); field != field_end; ++field, ++field_idx) |
| { |
| clang::NamedDecl *field_named_decl = cast<clang::NamedDecl>(field->getCanonicalDecl()); |
| if (field_named_decl == member_named_decl) |
| { |
| std::pair<uint64_t, unsigned> field_type_info = m_ast_context.getTypeInfo(field->getType()); |
| uint64_t field_bit_offset = record_layout.getFieldOffset (field_idx); |
| uint64_t field_byte_offset = field_bit_offset / 8; |
| uint32_t field_bitfield_bit_size = 0; |
| //uint32_t field_bitfield_bit_offset = field_bit_offset % 8; |
| |
| if (field->isBitField()) |
| { |
| clang::Expr* bit_width_expr = field->getBitWidth(); |
| if (bit_width_expr) |
| { |
| llvm::APSInt bit_width_apsint; |
| if (bit_width_expr->isIntegerConstantExpr(bit_width_apsint, m_ast_context)) |
| { |
| field_bitfield_bit_size = bit_width_apsint.getLimitedValue(UINT32_MAX); |
| } |
| } |
| } |
| |
| if (Node->isArrow()) |
| { |
| m_stream.PutHex8(DW_OP_deref); |
| } |
| else |
| { |
| m_stream.PutHex8(DW_OP_APPLE_address_of); |
| } |
| |
| if (field_byte_offset) |
| { |
| if (EncodeUInt64(field_byte_offset, 0)) |
| { |
| m_stream.PutHex8(DW_OP_plus); |
| } |
| } |
| m_stream.PutHex8(DW_OP_APPLE_clang_cast); |
| m_stream.PutPointer(field->getType().getAsOpaquePtr()); |
| break; |
| } |
| } |
| } |
| break; |
| |
| default: |
| assert(!"Unhandled MemberExpr"); |
| break; |
| } |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitExtVectorElementExpr (clang::ExtVectorElementExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitParenExpr(clang::ParenExpr *paren_expr) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| Visit (paren_expr->getSubExpr()); |
| } |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitInitListExpr (clang::InitListExpr *init_list_expr) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitBinaryOperator (clang::BinaryOperator *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| |
| Visit(Node->getLHS()); |
| Visit(Node->getRHS()); |
| |
| switch (Node->getOpcode()) |
| { |
| default: assert(0 && "Unknown binary operator!"); |
| case clang::BinaryOperator::PtrMemD: m_stream.PutHex8(DW_OP_APPLE_error); break; |
| case clang::BinaryOperator::PtrMemI: m_stream.PutHex8(DW_OP_APPLE_error); break; |
| case clang::BinaryOperator::Mul: m_stream.PutHex8(DW_OP_mul); break; |
| case clang::BinaryOperator::Div: m_stream.PutHex8(DW_OP_div); break; |
| case clang::BinaryOperator::Rem: m_stream.PutHex8(DW_OP_mod); break; |
| case clang::BinaryOperator::Add: m_stream.PutHex8(DW_OP_plus); break; |
| case clang::BinaryOperator::Sub: m_stream.PutHex8(DW_OP_minus); break; |
| case clang::BinaryOperator::Shl: m_stream.PutHex8(DW_OP_shl); break; |
| case clang::BinaryOperator::Shr: m_stream.PutHex8(DW_OP_shr); break; |
| case clang::BinaryOperator::LT: m_stream.PutHex8(DW_OP_lt); break; |
| case clang::BinaryOperator::GT: m_stream.PutHex8(DW_OP_gt); break; |
| case clang::BinaryOperator::LE: m_stream.PutHex8(DW_OP_le); break; |
| case clang::BinaryOperator::GE: m_stream.PutHex8(DW_OP_ge); break; |
| case clang::BinaryOperator::EQ: m_stream.PutHex8(DW_OP_eq); break; |
| case clang::BinaryOperator::NE: m_stream.PutHex8(DW_OP_ne); break; |
| case clang::BinaryOperator::And: m_stream.PutHex8(DW_OP_and); break; |
| case clang::BinaryOperator::Xor: m_stream.PutHex8(DW_OP_xor); break; |
| case clang::BinaryOperator::Or : m_stream.PutHex8(DW_OP_or); break; |
| case clang::BinaryOperator::LAnd: |
| // Do we need to call an operator here on objects? If so |
| // we will need a DW_OP_apple_logical_and |
| m_stream.PutHex8(DW_OP_lit0); |
| m_stream.PutHex8(DW_OP_ne); |
| m_stream.PutHex8(DW_OP_swap); |
| m_stream.PutHex8(DW_OP_lit0); |
| m_stream.PutHex8(DW_OP_ne); |
| m_stream.PutHex8(DW_OP_and); |
| break; |
| |
| case clang::BinaryOperator::LOr : |
| // Do we need to call an operator here on objects? If so |
| // we will need a DW_OP_apple_logical_or |
| m_stream.PutHex8(DW_OP_lit0); |
| m_stream.PutHex8(DW_OP_ne); |
| m_stream.PutHex8(DW_OP_swap); |
| m_stream.PutHex8(DW_OP_lit0); |
| m_stream.PutHex8(DW_OP_ne); |
| m_stream.PutHex8(DW_OP_or); |
| break; |
| |
| case clang::BinaryOperator::Assign: |
| m_stream.PutHex8(DW_OP_APPLE_assign); |
| break; |
| |
| case clang::BinaryOperator::MulAssign: |
| m_stream.PutHex8(DW_OP_over); |
| m_stream.PutHex8(DW_OP_swap); |
| m_stream.PutHex8(DW_OP_mul); |
| m_stream.PutHex8(DW_OP_APPLE_assign); |
| break; |
| |
| case clang::BinaryOperator::DivAssign: |
| m_stream.PutHex8(DW_OP_over); |
| m_stream.PutHex8(DW_OP_swap); |
| m_stream.PutHex8(DW_OP_div); |
| m_stream.PutHex8(DW_OP_APPLE_assign); |
| break; |
| |
| case clang::BinaryOperator::RemAssign: |
| m_stream.PutHex8(DW_OP_over); |
| m_stream.PutHex8(DW_OP_swap); |
| m_stream.PutHex8(DW_OP_mod); |
| m_stream.PutHex8(DW_OP_APPLE_assign); |
| break; |
| |
| case clang::BinaryOperator::AddAssign: |
| m_stream.PutHex8(DW_OP_over); |
| m_stream.PutHex8(DW_OP_swap); |
| m_stream.PutHex8(DW_OP_plus); |
| m_stream.PutHex8(DW_OP_APPLE_assign); |
| break; |
| |
| case clang::BinaryOperator::SubAssign: |
| m_stream.PutHex8(DW_OP_over); |
| m_stream.PutHex8(DW_OP_swap); |
| m_stream.PutHex8(DW_OP_minus); |
| m_stream.PutHex8(DW_OP_APPLE_assign); |
| break; |
| |
| case clang::BinaryOperator::ShlAssign: |
| m_stream.PutHex8(DW_OP_over); |
| m_stream.PutHex8(DW_OP_swap); |
| m_stream.PutHex8(DW_OP_shl); |
| m_stream.PutHex8(DW_OP_APPLE_assign); |
| break; |
| |
| case clang::BinaryOperator::ShrAssign: |
| m_stream.PutHex8(DW_OP_over); |
| m_stream.PutHex8(DW_OP_swap); |
| m_stream.PutHex8(DW_OP_shr); |
| m_stream.PutHex8(DW_OP_APPLE_assign); |
| break; |
| |
| case clang::BinaryOperator::AndAssign: |
| m_stream.PutHex8(DW_OP_over); |
| m_stream.PutHex8(DW_OP_swap); |
| m_stream.PutHex8(DW_OP_and); |
| m_stream.PutHex8(DW_OP_APPLE_assign); |
| break; |
| |
| case clang::BinaryOperator::OrAssign: |
| m_stream.PutHex8(DW_OP_over); |
| m_stream.PutHex8(DW_OP_swap); |
| m_stream.PutHex8(DW_OP_or); |
| m_stream.PutHex8(DW_OP_APPLE_assign); |
| break; |
| |
| case clang::BinaryOperator::XorAssign: |
| m_stream.PutHex8(DW_OP_over); |
| m_stream.PutHex8(DW_OP_swap); |
| m_stream.PutHex8(DW_OP_xor); |
| m_stream.PutHex8(DW_OP_APPLE_assign); |
| break; |
| |
| case clang::BinaryOperator::Comma: |
| // Nothing needs to be done here right? |
| break; |
| } |
| } |
| |
| |
| //CLANG_STMT_RESULT |
| //lldb_private::ClangStmtVisitor::VisitCompoundAssignOperator (CompoundAssignOperator *Node) |
| //{ |
| // DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| // |
| //} |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitAddrLabelExpr (clang::AddrLabelExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitTypesCompatibleExpr (clang::TypesCompatibleExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| |
| // C++ |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitCXXNamedCastExpr (clang::CXXNamedCastExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitCXXBoolLiteralExpr (clang::CXXBoolLiteralExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitCXXThisExpr (clang::CXXThisExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitCXXFunctionalCastExpr (clang::CXXFunctionalCastExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| |
| // ObjC |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitObjCEncodeExpr (clang::ObjCEncodeExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitObjCMessageExpr (clang::ObjCMessageExpr* Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitObjCSelectorExpr (clang::ObjCSelectorExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitObjCProtocolExpr (clang::ObjCProtocolExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitObjCPropertyRefExpr (clang::ObjCPropertyRefExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitObjCImplicitSetterGetterRefExpr (clang::ObjCImplicitSetterGetterRefExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitObjCIvarRefExpr (clang::ObjCIvarRefExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |
| CLANG_STMT_RESULT |
| lldb_private::ClangStmtVisitor::VisitObjCSuperExpr (clang::ObjCSuperExpr *Node) |
| { |
| DEBUG_PRINTF("%s\n", __PRETTY_FUNCTION__); |
| } |
| |
| |